the newly developed electric vehicles are equipped with only single speed transmission in order to minimize the drivetrain mass, volume, cost and issue of shift quality. The cost and shift quality are main issues to extend a two or multi-speed transmi...
the newly developed electric vehicles are equipped with only single speed transmission in order to minimize the drivetrain mass, volume, cost and issue of shift quality. The cost and shift quality are main issues to extend a two or multi-speed transmission to electric vehicle even the two or multi-speed transmission provides advantages of motor size reduction and vehicle Max. speed increase as well as fuel-economy improvement compared to a single speed transmission. This paper introduces the two speed transmission using synchronizer to shift and gives feasibility study on shift quality compared to conventional Automatic transmission in compact-size electric vehicle